Textile machinery



Ndv. 14, 1933. s. M. FULTON TEXTILE MACHINERY Filed July' 1, 1932 2 Sheets-Sheet l mm 8 a 5 mm Q 8 3w 2 NJ 3 mm mm mm mm Hm QM mm mm H Adi cm mo HM Nov. 14, 1933. s. M. FULTON TEXTILE MACHINERY Filed July 1, 1932 2 Sheets-Sheet. 3

lNvEn/ToR Stephan FUH'om ormegs the purpose of maintaining the packages 'stathreads may be led through tension devices and UNITED STATES PATENT OFFICE TEXTILE MACHINERY Stephen Miller Fulton, Spondon, near Derby, England, assignor to Celanese Corporation of America, a corporation of Delaware Application July 1, 1932, Serial No. 620,389,

and in Great Britain August 24, 1931 2 Claims. (Cl. 117-23) This invention relates to textile machinery, and to a guide eye situated beyond the passage and in particular to machines for the production of substantially in alignment therewith. beams and like packages of twisted yarn, the ob- In order to provide uniform unwinding of the ject of the invention being to produce such packthread a tension device of the type described in 6 ages in a rapid and expeditious manner. The U. S. application S. No. 618,454 filed June 21,1932,

invention is particularly applicable to the produccorresponding to British application No. 23496/ 31 tion of beams and like packages of twisted yarn filed 20th August, 1931, may be provided, this defrom yarns such as artificial silk yarns which vice consisting of a guide eye arranged to move initially have little or no twist. substantially radially under spring action against 10 According to the invention twisting of the yarns the tension of the thread as the thread proceeds is effected by means of a plurality of devices which from the package to a guiding member mounted each impart more than one turn of twist to the above the package. This guiding member may 1 yarn for each revolution applied to the device, comprise a guide eye arranged to rotate as the and the twisted yarns are wound simultaneously thread unwinds, or a circular disc, preferably ro- 15 on to a beam or like package. The additional tatable, against whose edge the thread bears betwist is obtained by causing the yarn leaving the fore proceeding to the centre of the package. On delivery package to form a loop which is rotated any alteration of the thread tension during unbodily round the package. Conveniently the winding, as by variation in the tightness at which twisting devices are arranged to impart two twists the thread has been Wound or by variation in the 20 to the yarn for each applied revolution by mainheight at which the thread leaves the surface taining the package stationary while the loop of of the package, the tensioning member moves subyarn leaving the package rotates about the packstantially radially to take up or give out slack age at the applied rate of revolution. as the case may be.

The twisting spindles may be arranged with The twisting spindles are mounted preferably horizontal axes, the packages being held stationin a number of rows on a'suitable frame proary by any suitable-means, as for example by vided with driving means for the spindles. For maintaining them in cradles which are fairly example each'row of the spindles may be driven heavily weighted and have their centres of ,gravby means of an endless belt engaging with whorls ity below the axis of revolution. Alternatively or on the spindles. Where it is desired to provide a 30 in addition the packages may be so mounted that beam or like package whose alternate threads 5 their centres of gravity lie below the axis of revo- I have different directionsof twist, such driving belt lution for the same purpose. The spindles may, maybe arranged to pass in zig-zag manner along of course, be somewhat inclined either upwardly the whorls of the spindlesso as to rotate alternate or downwardly while still employing gravity for spindles in opposite directions. The twisted 9o tionary. then through a spacing reed to the take-up beam. The spindles may, however, be arranged with The beam is so driven as tohave a constant vertical or substantially vertical axes, this arrate of take-up so that the threads are uniformly rangement generally affording greater accessitwisted. The actual degree of twist applied to 5 bility, besides enabling the packages to be arthe threads depends, of course, on both the rate of ranged concentrically, and allowing packages of operation of the twisting spindles, and on the large diameter to be employed while using twistrate of take-up. Since it is convenient to run ing spindles of comparatively small proportions. the twisting spindles always at the highest pos- 5 With such vertical or substantially vertical sible speed, the degree of twist may be simply adspindles the packages may be held stationary by justed by regulation of the rate of take-up. any suitable gearing or other means. It is con- As many twisting spindles as is convenient may venient to employ friction rollers of the type be arranged to deliver threads to a single beam, described in U. S. application S. No. 571,971 or where beams containing a very large number 50 filed 30th October, 1931. of threads are desired, a sectional beam may be The thread is withdrawn over one end of the wound, from a number of which a larger beam package and taken through the centre of the may be built up. package to a passage extending outwardly The invention will now be described in greater through the rotating member of the spindle, and detail with reference to the accompanying draw- 55 the thread on emerging from this passage passes ings, but it is to be understood that this descrip- 1m tion is given by way of illustration only and is in no respect limitative.

Figure 1 is a side elevation and Figure 2 a plan of one form of apparatus according to, the invention.

' Figure 3 is a side elevation and Figure 4 a front elevation of a further form of apparatus according to the invention, and

Figure 5 is a plan view similar to part of Figure 2 but showing a different arrangement of drive for the twisting spindles.

Referring to Figures 1 and 2, the bobbins 7 are mounted in three banks, on rails 8, 9, 10, and as will be seen in Figure 2, each bank consists of four rows of spindles 10', 11, 12, 13. The bobbins 7 are mounted on spindles of the kind described in U. S. application S. No. 571,971 and are provided with tension device as described in U. S. application S. No. 618,454 corresponding to British application No. 23496/31. The thread 15 leaves the bobbin 7, passes through the tension device 16, and then proceeds down the centre of the spindle, issuing in the form of a balloon 17 which is rap idly rotated about the bobbin 7. The bobbin 7 is maintained stationary as described in U. S. application S. No. 571,971, but the balloon is driven round from a whorl 18 and in this manner two turns of twist have been imparted to the yarn as it leaves the centrally disposed guide eye 19, for each revolution of the balloon. The spindles are driven by belts 20, there being one belt to each two rows in each bank, and the belts 20 are driven by pulleys 21 on the vertical shaft 22. The shaft 22 is driven through bevel gears 23 from a horizontal shaft 24, the drive being taken from the broken off end 25 of the shaft 24 shown in Figure 2. An idle pulley 26 is provided at the end of the rows of spindles remote from the pulleys 21, round which idle pulley the belts are guided from one row of spindles to the other.

The threads pass from the guides 19 to spacing guides 27 and are collected by passing through a reed 28. On leaving the reed 28, the thread passes alternately over and under lease rods 29, through a further reed 30 and over a roller 31. The lease rods 29, reed 30 and roller 31 are mounted on a lever 32 which is pivoted at 33 and maintained horizontal by the tension in the threads as they pass over and under the lease rods 29. In this manner the threads are fed on to a swift or drum 35 from which they are subsequently transferred in the usual manner to a beam or beam section.

The swift or drum'35 is carried in bearings 36 in a frame 37 and is driven by means of a chain 38 and sprocket 39 from a sprocket 40. The sprocket 40 is driven by worm gears 41 from a shaft 42 which is connected by bevel gears 43 to the main driving shafts 24, 25 of the apparatus. The gears 40, 41 are housed in the platform 45 on which the frame 37' is disposed. By means of the apparatus above described the yarns 15 are wound on the drum 35 at constant rate and are thereby drawn at constant rate from the bobbin 7. The rotation of the whorls 18 and balloon 17 causes two turns of twist to be imparted to the yarn.

In Figures 3 and 4 a similar arrangement is shown for twisting yarns, except that horizontal spindles are used instead of vertical spindles. The spindles, of which there are two rows and four banks, are driven by means of belts 47 from puleys 48 which are connected together in pairs by means of chains 49. The thread 15 coming from the spindles is passed through spacing guides 27 as described with reference to Figures 1 and 2, through a reed 28 and on to a winding device of the type previously described. The thread 15 leaving each bobbin 7 passes down the centre of the bobbin and issues from the rotating part of the spindle behind a rotating guide disc 50, springing cut into a balloon 17. The bobbin is maintained stationary while the balloon 17 rotates round the stationary bobbin thereby imparting the required double twist.

It will be observed from Figure 3 that the belts 47 pass alternately over and under the whorls 18 of the spindles, so that alternate spindles are rotated in opposite directions. Since the spindles are arranged to point alternately in opposite directions, the threads drawn off will all be twisted in the same direction. If, as shown in Figures 1 and 2, all the whorls are driven from the same side, the threads will be twisted alternately in opposite directions, so that some of the warp threads (preferably alternate warp threads) will be twisted in one direction while the remainder are twisted in the other, an expedient frequently resorted to in the weaving art.

An arrangement for producing alternate threads of opposite twist on the beam with the' apparatus shown in Figures 1 and 2 is indicated in Figure 5, wherein the belts 20 pass alternately inside and outside the driving whorls 18 of the spindles, so that one half of the threads are twisted to the right, while the remainder are twisted to the left.

12 What I claim and desire to secure by Letters STEPHEN MILLER FULTON. 

